Seat Leon since 2013 electrical system, repair e-manual

Content

Technical data

• Safety instructions
• Safety precautions for work on vehicles with start/stop system
• Safety precautions when using testers and measuring instruments during a road test
• Repair notes
• Contact corrosion
• Routing and securing wiring
• Battery
• Types of batteries
• Battery - general notes

Starter, current supply, CCS

• Battery
• Assembly overview - battery
• Battery: removing and installing
• Disconnecting and reconnecting battery
• Removing and installing battery tray
• Checking battery charge
• Charging the battery
• Removing and installing earth cable with battery monitor control unit J367
• Adapting the battery monitor control J367 unit
• Alternator
• Assembly overview - alternator
• Removing and installing the alternator
• Checking alternator
• Alternator: repairs
• Removing and installing poly V-belt pulley
• Removing and installing voltage regulator
• Starter
• Assembly overview - starter
• Starter motor: removing and installing
• Start-Stop System
• General description - start/stop system
• Adaptive cruise control
• Components of Adaptive Cruise Control
• Removing and installing the automatic distance control unit
• Calibrating adaptive cruise control

Gauges, instruments

• Instrument cluster
• Installing and removing the KX2 dashboard instrument cluster
• Horn
• Assembly overview - horn
• Weeter H2 / Woofer H7: installing and removing

Windscreen wash/wipe system

• Windscreen wiper
• Assembly overview - windscreen wiper system
• Moving windscreen wipers to service position
• Removing and installing wiper blade
• Removing and installing wiper arms
• Removing and installing windscreen wiper motor V
• Deactivating APP function of wiper motor
• Removing and installing rain and light sensor
• Windscreen washer
• Assembly overview - windscreen washer system
• Removing and installing headlamp washer reservoir
• Removing and installing windscreen washer fluid level sender
• Removing and installing windscreen washer pump
• Removing and installing spray jets
• Jet adjustment
• Rear window wiper system
• Assembly overview - rear window wiper system
• Removing and installing wiper blade
• Removing and installing windscreen wiper arm
• Adjusting windscreen wiper arm
• Installing and removing the V12 back window wiper motor
• Rear window washer system
• Assembly overview - rear window washer system
• Removing and installing headlamp washer reservoir
• Removing and installing rear window washer pump
• Removing and installing the spray jet
• Spray jet: adjustment
• Headlamp washers
• Assembly overview - headlight washer system
• Removing and installing headlamp washer reservoir
• Removing and installing headlight washer system V11 pump
• Removing and installing spray jets
• Jet adjustment
• Washer fluid hoses
• Repairing washer fluid lines

Lights, bulbs, switches - exterior

• Headlamps
• Assembly overview - headlight
• Removing and installing headlight
• Adjust headlights
• Correcting installation position of headlight
• Installing and removing the bulb for front blinker light M5 / M7
• Installing repair kit for headlight housing
• Changing headlights over from driving on right to driving on left
• Changing headlights over from driving on left to driving on right
• Installing and removing servomotor for headlight range adjustment V48 / V49
• Removing and installing dipped beam bulb
• Removing and installing dipped beam bulb M30 / M32
• Removing and installing parking light bulb M1 / M3
• Installing and removing the power module for headlight J667 / J668
• Removing and installing left LED module for daytime driving light and side light L176 / right LED module for daytime driving light and side light L177
• Fog lights
• Removing and installing fog light
• Removing and installing fog light bulb L22 / L23
• Adjusting fog lights
• Lights in exterior mirror
• Assembly overview - lights in exterior mirror
• Installing and removing the exterior mirror turn signal bulb L131 / L132
• Tail lights
• Installation location overview - Tail Lights
• Removing and installing tail lights on tailgate
• Removing and installing tail light
• Removing and installing tail lights M2 / M4
• Removing and installing turn signal bulb
• Additional brake lights
• Assembly overview - high-level brake light
• Removing and installing high-level brake light
• Number plate light
• Installing and removing number plate light X4 / X5
• Installing and removing number plate light bulb X4 / X5
• Switch module of the steering column
• Assembly overview - steering column switch module
• Removing and installing steering column switch module
• Removing and installing steering column electrical control unit J527
• Removing and installing ignition and starter switch
• Lock cylinder, removing and installing
• Steering lock housing: removing and installing
• Parking aid
• Assembly overview - parking aid
• Removing and installing parking aid J446
• Removing and installing warning buzzers for front parking assist H22
• Removing and installing warning buzzers for back parking assist H15
• Removing and installing front parking aid senders
• Removing and installing rear parking aid senders
• Entry and start authorisation
• Overview of fitting locations - access and start authorization system
• Overview of fitting locations - keyless access authorization system
• Removing and installing entry and start authorisation control unit J518
• Removing and installing front door exterior handle switch
• Removing and installing interior aerial 1 for entry and start authorisation R138
• Removing and installing front passenger side aerial for entry and start authorisation R135
• Removing and installing driver side aerial for entry and start authorisation R134
• Removing and installing luggage compartment aerial for entry and start system R137
• Removing and installing rear bumper aerial for entry and start authorisation R136
• Automatic headlight range control
• Removing and installing headlight range control unit
• Towing bracket
• Assembly overview - towing bracket socket
• Removing and installing trailer detector control unit J345
• Soundaktor
• Assembly overview - Soundaktor
• Structure-borne sound control unit J869 : removing and installing
• Actuator for structure-borne sound R214 : removing and installing
• Remove and install the holder for actuator for structure-borne sound R214

Lights, bulbs, switches - interior

• Lights
• Fitting location overview - lights in dash panel
• Fitting location overview - lights in front doors
• Overview of fitting locations - lights in centre console
• Fitting location overview - lights in luggage compartment .
• Fitting location overview - lights in roof trim
• Glove compartment light W6 : Removing and installing
• Remove and install footwell light W9 / W10
• Removing and installing front footwell light bulb L151 / L152
• Removing and installing central locking deadlock function warning lamp -SAFE- K133
• Removing and installing selector lever display unit Y26
• Remove and install luggage compartment light W3
• Installing and removing illuminated make-up mirror W20 / W14
• Replacing the bulb for interior light W1 / W13 / W19, front
• Replacing the bulb or rear interior light W47 / W48
• Removing and installing LED for background lighting
• Removing and installing storage compartment illumination bulb L120
• Controls
• Overview of fitting locations - controls in dash panel
• Overview of fitting locations - controls in front doors
• Fitting locations overview - controls in rear doors
• Overview of fitting locations - controls in centre console
• Overview of fitting locations - controls in luggage compartment
• Overview of fitting locations - controls in roof trim
• Remove and install EX1 light rotation switch
• Installation and removal of the headlight range thumb wheel E102
• Removing and installing switches in dash panel
• Removing and installing glove compartment light switch E26
• Installing and removing the mirror adjustment switch E43 / E168
• Installation and removal of the operating unit for window regulator in driver door E512
• Removing and installing window regulator E107 in the passenger door
• Removing and installing internal lock button on the driver's side E308
• Remove and install door contact switch F2 / F3
• Installation and removal of the button for window regulator in back door E700 / E705
• Remove and install back door contact switch F10 / F11
• Removing and installing electromechanical parking brake button E538 / auto-hold button E540
• Removing and installing rear lid contact switch
• Remove and install contact switch for vanity mirror F147 / F148
• Removing and installing button for sunroof E325
• Removing and installing interior light/reading light (front)
• Interior light / front reading lamp unit: removing and installing
• Button for tyre pressure control unit E226 : removing and installing
• Removing and installing the starter button E378
• Anti-theft alarm system
• Assembly overview - interior monitor
• Alarm horn H12 : removing and fitting
• Removing and installing anti-theft alarm sensor G578
• Removing and installing interior monitoring and vehicle inclination sensor E616
• Immobiliser
• Remove immobiliser reader coil, vehicles with keyless access system
• Lane change assist
• Overview - lane change assist
• Front camera for assist systems
• Assembly overview - Front camera for assist systems
• Removing and installing front camera for driver assist systems
• Cigarette lighter, socket
• Assembly overview - cigarette lighter, 12 V socket
• Removing and installing cigarette lighter U1
• Removing and installing socket illumination bulb L42
• Removing and installing rear cigarette lighter illumination bulb L32
• Removing and installing U socket

Wiring

• Relay carrier, fuse holder, E-boxes
• Overview of fitting locations - relay carriers, fuse carriers, electronics boxes
• Removing and installing electronics box (E-box)
• Removing and installing relay and fuse holder in E-box
• Removing and installing main fuse holder in E-box
• Removing and installing relay and fuse holder behind dash panel on driver side
• Control units
• Overview of fitting locations - control units
• Assembly overview - data bus diagnostic interface
• Control unit for the onboard network J519 : removal and fitting
• Removing and installing data bus diagnostic interface J533
• Connectors
• Unplugging door separating connector (left-side)
• Unplugging door separating connector (right-side)
• Removing and installing connector point at A-pillar (left-side)
• Removing and installing connector point at A-pillar (right-side)
• Repairing electrical wiring harnesses and plug-in connections
• Repairing aerial wires
• Vehicle diagnostic, testing and information systems

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